Even when there has been a change in fact that would not affect EWG status, an EWG may wish to have that change reflected in the record. While the Commissionís regulations do not establish any specific requirements or procedures for this situation, many EWGs submit notices of non-material changes in fact when such changes have occurred. These notices commonly consist of an informal letter providing a description of the changes in fact in question. Commission staff is available to provide guidance on such filings.